baber/WOPTO huggingface dataset:
Patent GB-149428-A (GB)
Title: Improvements relating to the application of dye stuffs containing the sulphonamide group to dyeing and printing
IPC: C07C309/43
Filed: 1919-05-13
Abstract: Monoazo dyes containing the sulphonamide group -SO2NH2 or -SO2NHR (R=methyl, ethyl, phenyl &c.) but no sulphonic or carboxylic group, are obtained by coupling a diazotized aminophenylsulphonamide or aminotolylsulphonamide with an amine or phenol.  The products are insoluble in water or alkali carbonates, but soluble in caustic alkali, and are employed for dyeing or printing cotton by impregnating the material with a caustic alkali solution of the dye (thickened if necessary) and then precipitating and fixing the dye on the material by means of carbon dioxide, bicarbonates, ammonium salts, weak acids, or alum. Products are specified from the following pairs of components:-2-aminotoluene-4-sulphonamide, 2-aminotoluene-4-sulphonanilide; or o-, m-, or p-aminophenylsulphonamide; and b -naphthol; 2-aminotoluene-4-sulphonamide and m-phenylenediamine; these products dye scarlet, red, and orange shades respectively.ALSO:Monoazo dyes containing the sulphonamide group -SO2NH2 or -SO2NHR (R=methyl, ethyl, phenyl &c.), but no sulphonic or carboxylic group are prepared by coupling a diazotized aminophenylsulphonamide or aminotolylsulphonamide with an amine or phenol.  The products are insoluble in water or alkali carbonates, but soluble in caustic alkali, and are employed for dyeing or printing cotton by impregnating the material with a caustic alkali solution of the dye (thickened if necessary) and then precipitating and fixing the dye on the material by means of carbon dioxide, bicarbonates, ammonium salts, weak acids, or alum.  Examples of padding and printing processes are given.  Products are specified from the following pairs of components:-2-aminotoluene-4-sulphonamide, 2 - aminotoluene - 4 - sulphonanilide, or o-, m-, or p-aminophenylsulphonamide, and b -naphthol; 2-aminotoluene-4-sulphonamide and m - phenylenediamine; these products dye scarlet, red, and orange shades respectively.
Patent GB-1010256-A (GB)
Title: Process for the production of adenine and 4,5-dicyanoimidazole
IPC: C07D233/90
Filed: 1964-03-20
Abstract: In a process for the preparation of adenine and/or 4,5-dicyanoimidazole, hydrogen cyanide is reacted with ammonia or an alkali metal cyanide is reacted with an ammonium salt of an acid having greater acidity than hydrogen cyanide in the presence of ammonia, the amount of water present being not more than 10 mole per cent based on the total reactants.  The reaction is preferably carried out between 60 DEG  and 200 DEG  C. under substantially anhydrous conditions.
Patent GB-350140-A (GB)
Title: A door closing and checking device
IPC: E05F3/10
Filed: 1930-04-16
Abstract: 350,140. Spring hinges and checks. HEATH, C. E., Heatherdene, Blackhall Lane, Sevenoaks, Kent. April 16, 1930, No. 12019. [Classes 65 (i) and 65 (ii).] In a door spring and fluid check apparatus combined with a hinge, shown open in Fig. 1, the cylinder 3 containing the spring and the check 10 are mortised into the door or doorpost behind the hinge leaf 2. The door spring 4 is compressed by a chain 6, attached to the other leaf 1, as the door is opened. The check has a piston 13, Fig. 3, with a stem 14 which passes through a gland 15 and the hinge leaf 2 so that it engages the leaf 1 during the final closing of the door. When the door is opened, the piston is pushed by the spring 23 until it is stopped, in the position shown, by the hollow plug 25, which has a breathing hole in its upper end. During this motion, fluid moves to the right of the piston through passages 21 and a non-return valve formed by a flexible washer 22 held against the piston by the spring 23. At the end of the closing movement of the door, the stem 14 is pushed in and the piston is moved to the right against the resistance of the fluid passing through passages 20, 24 ; the size of the passage 20 is varied by rotating the screw-threaded stem of the valve 18. The check and spring cylinders are fixed into the hinge leaf by bayonet joints; a special wrench for removing these cylinders or the ring-nut or gland of the check cylinder is described. The cylinders may be fixed to either leaf of the hinge, or one to each leaf.
Patent GB-1003816-A (GB)
Title: Improvements in or relating to light filters
IPC: G02B5/23
Filed: 1964-03-23
Abstract: A variable density light filter comprises a solution of a thiazine dye excitable by light of a selected wavelength in the presence of stannous chloride.  The solution e.g. in water acidified with HCl may be held in a round, square, or lens-shaped capsule which may contain a porous material of refractive index close to that of the solution. The dyes used may be Azure A, Azure B, Azure C, Toluidene Blue O, Methylene Blue, New Methylene Blue, or Thionine.
Patent GB-843235-A (GB)
Title: Improvements in or relating to v-grooved pulleys having a variable effective diameter
IPC: F16H55/56
Filed: 1958-04-16
Abstract: 843,235. Expanding-wheel gear. ETABLISSEMENTS COLMANT & CUVELIER. April 16, 1958 [Dec. 13, 1957], No. 12110/58. Class 80 (2). Equal and opposite axial movement of both flanges 7, 8 of an expanding pulley in both directions of rotation is enforced by a diametral pin 16 fast on an axially fixed driving shaft 2 and engaging oppositely directed axially divergent V-shaped helical slots 17, 18 in freely mounted sleeves 5, 6 integral with the respective flanges and slidably keyed together. Control is automatic by belt tension opposed by a closing spring 13, or is manual by a screw acting on one flange only.
Patent GB-411655-A (GB)
Title: Improvements in and relating to methods of and apparatus for purifying the exhaust gases of internal combustion engines
IPC: F01N13/02
Filed: 1933-04-26
Abstract: 411,655. Purifying exhaust. BLUM, R., 4, Duisburger Strasse, Berlin. April 26, 1933, No. 12215. Convention date, March 28. [Class 7 (ii).] In an arrangement for purifying the exhaust by adding an excess of from 35 to 50 per cent of air, and then passing the mixture over catalysts comprising noble and other metals applied in a fine state of sub-division to refractory carriers, all the piping &c. between the engine and the catalyst chambers is formed of materials -e.g. chromium-which cause no fresh formation of carbon. Other suggested materials are sichromal, silver, aluminium, copper, nickel or rustless steel ; the parts, which comprise the exhaust pipe b of the engine, a nozzle m<1> for the additional air and a mixing chamber c<1>, and which may, alternatively, be made of iron plated with these materials, are subsequently polished. Metals suggested as catalysts are platinum, gold, osmium, rhodium, silver, vanadium, molybdenum, titanium, nickel, a mixture of platinum and rhodium being especially suitable ; the carriers may be formed as plates n of chamotte having perforations, the total area of which is at least equal to that of the pipe b or as plates projecting from opposite walls of the chambers with staggered passages ; they are prepared by being allowed to absorb an aqueous salt solution, and are subsequently dried and the mass is then ignited or heated, preferably in a stream of hydrogen. An oxidic catalyst-e.g. hopcalite -may be used in conjunction with the noble metal catalyst. The air may be drawn in by injector action of the exhaust.
Patent GB-636806-A (GB)
Title: Improvements relating to adjustable chairs
IPC: A47C1/032
Filed: 1948-05-04
Abstract: 636,806. Seats. BRITISH OVERSEAS AIRWAYS CORPORATION, and FINNIMORE, J. R. May 4, 1948, No. 12274. [Class 52 (ii)] In an adjustable chair as described in Specification 447,327 the inclined runways 9 are each provided with a toothed rack 48 and each of the runners 11 by which the rear of the seat is supported carries a lock engageable with the toothed rack the lock being operable by the lever handle through a cable &c. 64. As shown each runway 9 is provided at the inner side with a rack 48 and is embraced by a runner 11 which is provided with a boss to which is secured a housing 49 having a locking plunger 51 the inner end of which is formed as a tooth 52 to engage the rack 48. The plunger 51 which is spring-pressed has slidable within it a locking pin 54 having a conical shoulder 56 which, in the engaged position of the plunger 51, forces balls 57 outwardly into grooves 58 and so prevents accidental withdrawal of the plunger. The locking pin 54 is withdrawable by means of the cable 63 of a Bowden cable 64 and at the end of its stroke permits the balls 57 to leave the grooves 58 and also to withdraw the plunger 51 by means of a grub screw 59 operating in a slot 61. The Bowden cable 64 is, at the other end, fixed to a slide operated by squeezing the two-part handle of the lever 27.
Patent GB-383548-A (GB)
Title: Improvements in or relating to control systems for motor vehicles
IPC: H02P9/00
Filed: 1932-04-28
Abstract: 383,548. Vehicle brakes. CLARKE, C. H., 107, Caxton House, Westminster.- (Harvey, J. H. ; 2023, Boggs Avenue, Wilkinsburg, Pennsylvania, U.S.A.) April 28, 1932, No. 12282. [Class 103 (i).] In a vehicle of the Diesel-electric kind the controller for starting and accelerating the vehicle is associated with means for disconnecting the motor and applying the brakes if the operator becomes disabled. As shown, the throttle 18 of the engine 17 is controlled by an air valve 22 controlled by a magnet valve 23, and the brakes are controlled bv a balanced air valve 26 controlled by a magnet valve 28. The valves 23, 28 and the switch 16 (which connects the generator 13 to the motor 10) are operated by the current from points 74, 73, 78 respectively of a master controller 32, which is actuated by a pulley 34 connected to two or more auxiliary controllers 35, 36 each comprising a " dead man's handle " 43. On gripping one handle 43 a segment 41 is pulled up and causes a current to flow through the coil 51 of a relay 47 thus closing the main switch, energizing the point 73 of the master controller and the valve 28, and releasing the brakes. When the handle 43 is turned, the points 73, 74 of the master controller are joined, thus energizing the valve 23 and opening the throttle of the engine. Finally the points 73, 78 are joined, which closes the motor switch 16. If the handle 43 is released the coil 51 of the relay 47 is de-energized, and after a predetermined time interval the core is sufficiently demagnetized by the constantly-flowing current in the coil 52 for the switch 48 to open, thus closing the throttle (or reducing it to idling dimensions), opening the switch 16, and setting the brake-applying mechanism in action. It is thus possible for the driver to move from one operating handle to another without the vehicle stopping. Signal lamps 81, 91 are adapted to be illuminated when a handle is being operated.
Patent GB-674686-A (GB)
Title: Improvements in and relating to devices for closing up containers, more particularlybottles
IPC: B67B3/14
Filed: 1950-05-17
Abstract: 674,686. Capsuling bottles &c. JASTA AKT.-GES. May 17, 1950. [May 23, 1949; July 20, 1949]. No. 12,291/50. Classes 125 (ii) and 125 (iii). In a closing capsule for bottles or the like consisting of a resilient member 3 permanently attached to the bottle by an annular part 2 and a concave thin metal capsule 4 the edges of which are expanded into the member 3, the capsule 4 is expanded by jaws 6 separated by sliding on conical surfaces 14, 15 of a control member 10 and a casing 7, 8 respectively, when the casing is depressed. The concave formation of the capsule is maintained during the expansion by parts 16 of the jaws 6 or by a separate member along which the jaws can move radially. The member 10 is fitted at the top with a disc which can move radially over the face 13 of the casing and a spring 12 is interposed between the disc and a member 11 bearing on the jaws ; the jaws can thus take up different levels and the member 10 can move slightly sideways in order to compensate for irregularities in the annular part 2. So that the jaws 6 will not bind the top flange 19 of the capsule against the part 2 during expanding, the jaws are cut away at 18 and have lugs 17 bearing on the part 2.
Patent GB-311226-A (GB)
IPC: C01D5/10
Filed: 1929-04-22
Abstract: 311,226. Chemieverfahren-Ges. May 7, 1928, [Convention date]. Addition to 300,630. Potassium sulphate; sodium bicarbonate.- Crude potash salts, consisting of sylvinite containing kieserite, are heated with liquor free from or poor in ammonia to hydrate the kieserite. The solution after cooling is treated with ammonia when potassium and sodium sulphate settle out. The mixture is treated with cold water to dissolve sodium sulphate and leave potassium sulphate undissolved. The mother liquors are treated with carbon dioxide to precipitate magnesium ammonium carbonate, which may be heated to recover carbon dioxide and ammonia and leave magnesium carbonate or magnesia, or may be heated with ammonium chloride to yield magnesium chloride. The mother liquors are cooled to separate ammonium chloride and are treated again with carbon dioxide to separate sodium bicarbonate. The residual liquors containing ammonium bicarbonate and ammonium and sodium chlorides are heated to drive off ammonia and carbon dioxide which are returned to the process.
Patent GB-415531-A (GB)
Title: Improvements in or relating to epicyclic gearing
IPC: F16H37/04
Filed: 1933-04-28
Abstract: 415,531. Variable-speed and reversing gearing. PULS, E. F., 48, Middleton Hall Road, King's Norton, Birmingham. April 28, 1933, No. 12415. [Class 80 (ii).] In series with an epicyclic change-speed gear comprising braked trains d, e, &c. (three shown), is a three-element epicyclic reversing- train, having an annulus t, splined on the final driven-shaft f and sliding axially, together with a planet-carrier m, to clutch teeth q on the planet-carrier with fixed casing-teeth r for reverse, or to engage clutch-teeth v on the annulus with teeth w on a sun-wheel j, keyed to the gear-output shaft b, for a solid forward drive. Between the annulus and an operating- collar x on its boss is an enclosing-flange y secured to the planet-carrier to cause these elements to slide together. The planet-carrier may float freely, as shown, or it may bear on the sun-wheel and annulus. The shafts b, f are spigoted together, with a roller bearing h therebetween. There is a lubricating-pipe z. The reversing-gear may be controlled independently of, or conjointly with, the change-speed gear.
Patent GB-953031-A (GB)
Title: A process for use in the production of a semi-conductor device
IPC: H01L21/24
Filed: 1962-03-30
Abstract: 953,031. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. March 30, 1962 [March 30, 1961], No. 12461/62. Heading H1K. A semi-conductor device is made by alloying metal to a face of a completely dislocation free semi-conductor monocrystal oblique to all the (111) planes of the crystal. The face preferably lies in a (100), (110) or (112) crystallographic plane. In a typical example a monocrystalline silicon rod with its <111> axis lying along its axis, grown by the method described in Specification 926,497 is cut parallel to its length and the resulting slices sub-divided into wafers. After lapping to a thickness of 200 Á and etching in a mixture of nitric and hydrofluoric acids each wafer is stacked with a gold antimony foil on one face and a gold-boron or aluminium foil on the other on a molybdenum carrier plate. The stack is embedded in powdered graphite, compressed and heated to 600  C. to cause alloying. Spread of alloying material beyond the area to which the foils are applied, which occurs when alloying to (111) faces of dislocation free monocrystals, is avoided by the above method.
Patent GB-142846-A (GB)
Title: Improvements in and relating to methods of transmitting wireless messages
IPC: H04B14/08
Filed: 1920-05-05
Abstract: 142,846. Siemens & Halske Akt.-Ges. April 24,1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Wireless telegraphy and telephony.-In a system in which transmitted waves are given a group or amplitude-pulsation frequency, which is higher than the signal frequency, the receiving system is tuned to both wave and group frequency, and the group frequency and the damping of the receiving and transmitting circuits are such that, whilst a favourable utilization of energy is attained, suffcient damping is present to maintain the tuning. Groups are formed by varying, by means of a control device ZF, the amplitude of the high-frequency oscillations generated by the source HF. The group frequency is so chosen that a constant number of groups go to the shortest time division contained in a signal, i.e. in continuous wave telegraphy the shortest dot length and in wireless telephony and musical spark telegraphy a period of an audible tone. If, for instance. the damping of the transmitting system is such that the oscillations in the aerial C reach their maximum amplitude after 30 periods, the group frequency is determined so that each group consists of 30 high-frequency periods. These groups are received by the antenna C1, and if the damping of the high-frequency circuit HF is such that the amplitude of oscillation therein drops to about one half in 30 periods, the received high-frequency waves can increase to maximum amplitude. The high-frequency oscillations are rectified by the detector d, and pulsations 2 of group frequency are obtained. These are converted to oscillations by the intermediate oscillatory circuit ZF, tuned to the group frequency. The number of periods in which oscillations in the circuit ZF reach their maximum amplitude is approximately equal to the number of groups constituting an elementary signal duration, so that in the shortest dot length or tone period maximum amplitude is attained in the circuit ZF. These group-frequency impulses are rectified by the detector d' and integrate themselves according to a curve of the character of curve 5, Fig. 4. They may be used to influence a telephone receiver, or they may be transmitted to a third circuit tuned to tone frequency. It is preferred that the group frequency be made equal to the geometric mean between the wave frequency and the signal frequency since then the damping of both circuits HF and ZF is as high as possible with a minimum loss of energy.
Patent GB-1020165-A (GB)
Title: Modified alkyd resins
IPC: C08L29/08
Filed: 1963-03-29
Abstract: Alkyd resins are made by reacting (a) a polycarboxylic acid, (b) a polyhydric alcohol having at least four hydroxyl groups, (c) a copolymer of styrene, alpha-methyl styrene or an alkyl- or chloro-nuclear-substituted styrene and allyl or methallyl alcohol and (d) a saturated or unsaturated fatty acid or a polyhydric alcohol ester thereof, e.g. a fatty oil.  Specified for (a) are malonic, glutaric, succinic, suberic, pimelic, sebacic, dihydroacrylic, chlorosuccinic, bromomalic, maleic, fumaric, itaconic, citraconic, mesaconic, 1:2-cyclohexanedicarboxylic, 1:8-naphthalic, 3:4 - dichlorophthalic, benzophenone-2:41-dicarboxylic, citric, tricarballylic, phthalic, isophthalic and terephthalic acids. Specified for (h) are pentaerythritol, di- and poly-pentaerythritols, polyglycerol, erythritol, arabitol, xylitol, mannitol and dulcitol. Coating compositions are made by dissolving the resin in xylol or mineral spirits, and, possibly adding a urea-formaldehyde, melamine-formaldehyde, urea-melamine-formaldehyde or cellulose nitrate resin.  The alkyds may also be used in water-in-oil emulsions.
Patent GB-1364626-A (GB)
Title: Digital data processing system
IPC: G06F11/20
Filed: 1971-07-06
Abstract: 1364626 Digital computers; error detection DEFENCE SECRETARY OF STATE FOR 6 July 1971 [9 July 1970] 12636/74 Divided out of 1364625 Heading G4A The disclosure is the same as that of the parent Specification 1,364,625. The claims are directed to a fault detection arrangement for a computer whereby l/o operations are performed at first predetermined time intervals and the computer performs check calculations resulting in a check number which is converted to a second time interval. If the first and second intervals deviate from a predetermined relationship, unit 126A or 126B produces a fault signal.
Patent GB-146089-A (GB)
Title: Improvements relating to travelling poises for weighing machines
IPC: G01G1/26
Filed: 1920-05-07
Abstract: 146,089. Schember, K., and Joksch, R. July 1, 1919, [Convention date]. Steelyard apparatus. - Relates to steelyard poises which are moved along the steelyard by means of adjusting-devices and consists in an arrangement whereby the poise, before reaching the correct notch, moves out of contact with the adjusting-device under the influence of its own weight or of a spring and positions itself in the notch. In the form shown in Fig. 1, the steelyard 1 is notched and the poise 5 in the form of a roller is moved over the notches by a forked adjusting-device 7 which loosely engages trunnions 6 on the poise and slides on a notched frame 9. After correct adjustment of the adjusting- device 7, the poise 5 automatically rolls into the notch by its own weight. A polygonal poise may be used instead of a cylindrical one. In the form shown in Fig. 4, the poise is mounted on rollers 20, 18 and is provided with an eccentric 19 which raises the poise as it is moved along by the adjusting-device. After release by the adjusting device, the weight of the poise, assisted by a spring 23, causes further movement of the poise so as to position its nib 16 in the notch. Pinions rigid with the rollers 18 engage racks on the steelyard and ensure the correct movement of the eccentric 19.
Patent GB-631657-A (GB)
Title: Improvements in or relating to the manufacture of hollow-moulded articles such as pottery or china
IPC: B28B7/40
Filed: 1945-05-21
Abstract: 631,657. Drying pottery. FERRANTI. Ltd., and HUMBER, F. L. May 21, 1945, No. 12700. [Class 87(i)] [Also in Group XIII]  Hollow moulded articles are dried in absorbent moulds by placing in an inverted position on a table, having a moisture absorbent top, with heat applied from beneath. In an example a rotating table, having a moisture absorbent top of plaster of Paris, may be enclosed in a tunnel like housing, having openings for insertion and removal of the articles to be dried. Radiant heaters may be employed of the type described in Specification 631,656, [Group XIII].
Patent GB-331307-A (GB)
Title: Improvements in junction boxes for electric wiring systems
IPC: H02G3/14
Filed: 1929-04-24
Abstract: 331,307. Bryce, S. J., Clements, W. R., Leicester, H., Watson, A. E., and Roberts, J. H. April 24, 1929. Earth - continuity couplings; sheathing, connection of; junction boxes. - Screws 13 on the cover of a junction box clamp the cables 4 in position and at the same time force the cover 8 and base 1 apart to bring them into frictional engagement. The cover and base have flanges 11, 7 which slide over one another by rotational or linear movement, stops 16 being provided on the base to limit the movement. The wall 2 of the base is cut at the openings 3 into strips 17 to provide entry for further cables. The screws bond the cable sheaths together. The boxes may be round, rectangular, or T-shaped.